Refrigerant piping work
1. Selection of pipe
To this unit, both liquid and gas pipes shall be insulated as they become low temperature in operation. 
Use optional parts for piping set or pipes covered with equivalent insulation material.
Liquid pipe | 6.35mm ( 1/4'' ) x 0.8mm |
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Gas pipe | 9.52mm ( 3/8'' ) x 0.8mm |
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2. Connection of pipe
Apply refrigerant oil on half union and flare nut.
To bend a pipe, give the roundness as large as possible not to crush the pipe.
Connecting the pipe of gas side firstly makes working easier.
Half union |
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Spanner | Torque wrench |
Forced fastening without careful centering may damage the threads and cause a leakage of gas.
Pipe Diameter ( ) | Fastening Torque |
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Liquid Side 6.35mm (1/4'') | 18N.m |
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Gas Side 9.52mm (3/8'') | 50N.m |
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3. Attaching
If the
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